Automatic gas-controller.



PATENTED NOV. 12, 1907.

J. C. LANDES.` AUTOMATIC GAS CONTROLLER.

APPLIOATIOBl FILED PEB. 15, 1907.

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UNITED STATES JOSEPH C. LANDES, OF COLLEGEVILLE, PENNSYLVANIA.

Specification of Letters Patent.

AUTOMATIC GAS-CONTROLLER.

Patented Nov. 12, 1907.

Application filed February 15, 1907. Serial No. 357,499.

To all whom it may concern:

Be it known that I, J osnrn 0. LANDES, a citizen of the United States, residing at Collegeville, in the county of Montgomery, State of Pennsylvania, have invented a new and useul Automatic Gas-Controller, of which the following is a specification.

My invention consists of improvements in automatic gas controllers o the form shown in my application for Letters Patent, filed by me on the 15th day of November 1906, Serial Number 343,481, the object being to seal the movable members within the body or casing oi the device, so as to prevent leakage of gas therein, and also locate the pipe which supplies the burner with gas and supports the same Within said casing.

It also consists of a device for preventing back pressure of gas to the main or gas holder when pressure on the mains is increased for lighting or extinguishing.

Figure 1 represents a side elevation ot' a controller, embodying my invention. Fig. 2 represents a central vertical section thereof. Fig. 3 represents a vertical section of a trap employed in connection with the controller.

Similar letters of reference indicate corresponding parts in the figures.

Referring to the drawings: A designates the exterior casing of the device, the same being open at top, and practically closed at bottom.

B designates an interior casing, the same rising from the side portion ot the base C of the casing A, and being open at top and closed at bottom, except for ports hereinafter described.

D designates a rising and falling vessel, which is closed at top and open at bottom, the side of said vessel being interposed in the space or chamber E between the side walls o the casings A and B. In said space is placed a quantity of mercury, as at F, into which the vessel D dips and forms a seal for the bottom of the latter.

Connected with the central portion of the base, is the pipe G, which supplies gas to the burner H. Telescopically fitted on said pipe G, is the rising and falling pipe J, to whose upper end is secured the cross-bar K, which with the adjacent mechanism is adapted to close and break an electric circuit for turning-on and cuttingoff the gas at the burner and form a spark for igniting the gas as in my previous application, it being noticed that the top ofthe vessel D is connected with said pipe J. Rising from the base 0 and surrounding the pipes G and J, is the pipe L, which is closed at bottom and open at top. In the space or chamber M between said pipes G, J and L, is a quantity of mercury N, into which the lower end of said movable pipe J dips as a seal for the bottom thereof. In the base A, are ports P, Q, and Q, the same being in communication with the supply nipple R, the port P opening to the pipe G, and the ports Q, Q, opening into the inner casing B.

The operation is as followsz-As the gas pressure is increased, it enters the casing B, and presses against the top of the vessel D. The latter thus acts as a float and rises, and with it the pipe J, whereby the cross-bar K is elevated, and the movable electrode S shown in dotted lines closes the electric circuit, whereby the gas is turned on and the igniting spark formed as in my previous application.A Gas in the meantime has also entered the pipe G, whereby the burner is supplied and the light occasioned. When the pressure of the gas is lowered, or the same cut-off, the vessel D and consequently the cross-bar K descends, whereby the movable electrode is operated and so located that the circuit is broken, and the burner is so operated by said action as to turn its valve or key so as to cut-off the gas when the light is extinguished. As the lower end oi vessel D dips into the mercury in the chamber E, the resultant seal prevents the gas that enters the casing B from escaping or leaking into the exterior casing A. As the lower end of the movable pipe J dips into the mercury in the chamber M, the resultant seal prevents the gas that enters the casing B from escaping or leaking into said pipe J.

T designates a trap forming a primary receiver for gas, the same being in communication with the source of supply by means of the pipe U. Depending within said receiver and communicating with the pipe U, is the tube V, whose lower end dips into the sealing material W, the bottom of said receiver having a iilling device X for said material. Connected with the wall oi the receiver, is the discharge pipe Y, the latter communicating with the nipple R of the casing A, by any suitable means, as for example, a system of gas mains, it being seen that ii there is back pressure oi the gas from either the pipe G or the vessel D, the gas entering the trap T is resisted by the seal or sealing material W, and so prevented from passing into the tube V and returning to the gas in the source o supply.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, isz- 1. In an automatic gas controller, an exterior casing and an interior casing for-ming a chamber, a float in communication with a gas supply, having its side wall in said chamber' between said casings, and closed at its upper' end, a sealing medium in said chamber, the lower end of said iioat being adapted to dip into said medium, a member carried by said float exteriorly of said chamber and a gravitatingl electrode normally carried by said member'.

2. In an automatic gas controller, a casing, a burner, a gas supplying pipe passing through said casing` and adapted to support said burner', a movable pipe telesopically fitted on the first named pipe with its lower end movable in a sealing medium, a movable member' of an electrically-circuit forming and breaking device connected with said movable pipe and a gr'avitating electr-ode supported by said member.

3. In an automatic gas controller, a casing, a float therein, a burner, a gas supplying pipe for said burner, a movable pipe fitted on said supplying pipe, and having said fioat connected with it, a chamber around said pipes ports leading into said casing, a sealing medium in said chamber, the lower end of said movable pipe being adapted to dip into said medium and a gravitating electrode movable with said pipe.

4. In an automatic gas controller, a casing, a oat therein, a gas supplying4 pipe, a movable pipe telescopically fitted on said supplying pipe, a gravitating member of an electrically-circuit, forming and breaking device connected with said movable pipe, a plurality of chambers in said casing, and sealing materials in said chambers, the lower end of said float and the lower end of said movable pipe being adapted to dip respectively in said chambers.

5. In a gas controller, an exterior casing and an interior casing forming a chamber, a float in communication with a gas supply, having -its side wall in said chamber between said casings, and closed at its upper ends, a sealing medium in said chamber, the lower end of said float being adapted to dip into said medium, a member carried by said lioat exteriorly of the chamber, a gravitating electrode normally carried by said member, and a trap vforming a primary receiver for the gas connected with the exterior casing.

JOSEPH C. LANDES.

Witnesses:

JOHN A. WIEDERSHEIM, WM. CANER WI'EDnnsniM. 

